using System;
using System.Reactive;

namespace Octokit.Reactive
{
    /// <summary>
    /// Client for accessing contents of files within a repository as base64 encoded content.
    /// </summary>
    public interface IObservableRepositoryContentsClient
    {
        /// <summary>
        /// Returns the HTML rendered README.
        /// </summary>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <returns></returns>
        IObservable<Readme> GetReadme(string owner, string name);

        /// <summary>
        /// Returns just the HTML portion of the README without the surrounding HTML document. 
        /// </summary>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <returns></returns>
        IObservable<string> GetReadmeHtml(string owner, string name);
        
        /// <summary>
        /// Get an archive of a given repository's contents
        /// </summary>
        /// <remarks>https://developer.github.com/v3/repos/contents/#get-archive-link</remarks>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <returns>A promise, containing the binary contents of the archive</returns>
        IObservable<byte[]> GetArchive(string owner, string name);

        /// <summary>
        /// Get an archive of a given repository's contents, in a specific format
        /// </summary>
        /// <remarks>https://developer.github.com/v3/repos/contents/#get-archive-link</remarks>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
        /// <returns>A promise, containing the binary contents of the archive</returns>
        IObservable<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat);

        /// <summary>
        /// Get an archive of a given repository's contents, using a specific format and reference
        /// </summary>
        /// <remarks>https://developer.github.com/v3/repos/contents/#get-archive-link</remarks>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
        /// <param name="reference">A valid Git reference.</param>
        /// <returns>A promise, containing the binary contents of the archive</returns>
        IObservable<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat, string reference);

        /// <summary>
        /// Get an archive of a given repository's contents, in a specific format
        /// </summary>
        /// <remarks>https://developer.github.com/v3/repos/contents/#get-archive-link</remarks>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
        /// <param name="reference">A valid Git reference.</param>
        /// <param name="timeout"> Time span until timeout </param>
        /// <returns>The binary contents of the archive</returns>
        IObservable<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat, string reference, TimeSpan timeout);

        /// <summary>
        /// Returns the contents of a file or directory in a repository.
        /// </summary>
        /// <remarks>
        /// If given a path to a single file, this method returns a collection containing only that file.
        /// </remarks>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="path">The content path</param>
        /// <returns>
        /// A collection of <see cref="RepositoryContent"/> representing the content at the specified path
        /// </returns>
        IObservable<RepositoryContent> GetAllContents(string owner, string name, string path);

        /// <summary>
        /// Returns the contents of the root directory in a repository.
        /// </summary>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <returns>
        /// A collection of <see cref="RepositoryContent"/> representing the content at the specified path
        /// </returns>
        IObservable<RepositoryContent> GetAllContents(string owner, string name);

        /// <summary>
        /// Returns the contents of a file or directory in a repository.
        /// </summary>
        /// <remarks>
        /// If given a path to a single file, this method returns a collection containing only that file.
        /// See the <a href="https://developer.github.com/v3/repos/contents/#get-contents">API documentation</a> for more information.
        /// </remarks>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="reference">The name of the commit/branch/tag. Default: the repository’s default branch (usually master)</param>
        /// <param name="path">The content path</param>
        /// <returns>
        /// A collection of <see cref="RepositoryContent"/> representing the content at the specified path
        /// </returns>
        IObservable<RepositoryContent> GetAllContentsByRef(string owner, string name, string reference, string path);


        /// <summary>
        /// Returns the contents of the home directory in a repository.
        /// </summary>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="reference">The name of the commit/branch/tag. Default: the repository’s default branch (usually master)</param>
        /// <returns>
        /// A collection of <see cref="RepositoryContent"/> representing the content at the specified path
        /// </returns>
        IObservable<RepositoryContent> GetAllContentsByRef(string owner, string name, string reference);

        /// <summary>
        /// Creates a commit that creates a new file in a repository.
        /// </summary>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="path">The path to the file</param>
        /// <param name="request">Information about the file to create</param>
        /// <returns></returns>
        IObservable<RepositoryContentChangeSet> CreateFile(string owner, string name, string path, CreateFileRequest request);

        /// <summary>
        /// Creates a commit that updates the contents of a file in a repository.
        /// </summary>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="path">The path to the file</param>
        /// <param name="request">Information about the file to update</param>
        /// <returns>The updated content</returns>
        IObservable<RepositoryContentChangeSet> UpdateFile(string owner, string name, string path, UpdateFileRequest request);

        /// <summary>
        /// Creates a commit that deletes a file in a repository.
        /// </summary>
        /// <param name="owner">The owner of the repository</param>
        /// <param name="name">The name of the repository</param>
        /// <param name="path">The path to the file</param>
        /// <param name="request">Information about the file to delete</param>
        IObservable<Unit> DeleteFile(string owner, string name, string path, DeleteFileRequest request);
    }
}